Chapter 13: Perception & Vision Flashcards
Visually light effects
Task performance and Color Perception
Physiologically light effects
Circadian Stimulus and Metabolic Systems
Psychologically and Perceptually light effects
Biophilic Design (Mood and connectedness) along with Signaling and Messaging
Light is a member of a large family phenomena called?
Electromagnetic Radiation
EMR stands for?
Electromagnetic Radiation
EMR is ____ ______?
Raw Energy
EMR has no?
Mass, Taste or color
EMR radiations travels at the speed of?
Light
EMR varies only in?
Wavelength
Wavelength is measured in _____-_____ reported as ____
Nano-Meters; Hertz
What wavelengths of EMR does the sun radiate?
almost every type
What are the mechanisms we use?
Accomodation & Adaptation
This is a description of what part of the eye?
Clear transmitting/ refracting/ protecting device
Cornea
This is a description of what part of the eye?
Pupil: some of our dark/light adaptation (dilate)
Iris
This is a description of what part of the eye?
Flexible to change shape to refract differently to accommodate (focus)
Crystalline Lens
This is a description of what part of the eye?
Home to all of our photoreceptors(light detectors)
DEscribed as 3 parts, periphery, macula, fovea
Retina
Stiffening of the lense is?
Presbyopia
When you’re short sighted this is called?
Myopism
When you’re far sighted this is called?
Hyperopia
Blurring images in certain directions is called?
astigmatism
These are all descriptors of?
populate the macula and fovea
active in high light levels
responsible for color vision
Cones
These are all descritpors of?
populate the periphery of the eye
active in low light situations
very sensitive to change and motion
Rods
the ironically photoreceptive retinal ganglion cell impacts our circadian systems and seeks blue
3rd photoreceptor
Rods and cones perceive color?
Differently
What color do cones favor?
Yellow
What color do Rods favor?
Green
Vision under well-lit contiions, which provides for color perception, and which functions primarily due to cone cells in the eye
Photopic vision
A combination of photopic vision and scotopic vision in low lighting, which functions due to a combination of rod and cone cells in the eye
Mesopic Vision
Monochromatic vision in very low light, which functions primarily due to rod cells in the eye
Scotopic Vision
_____ gives rise to the sensations of brightness
Illuminance
_____ is a result of?
The intensity of light falling on a given region of the retina at a certain time
2.
The intensity of light that the retina has been subject to in the recent past (adaptation)
3.
The intensities of light falling on other regions of the retina (contrast)
Brightness
Cone or Light adaptation is similar to?
Dark theater into daylight
Rod or dark adaptation is similar to?
daylight into dark theater
_____ _______ is an example of subjective constancy and a feature of the human color perception system which ensures that the perceived color of objects remains relatively constant under varying illumination conditions. A green apple for instance looks green to us at midday, when the main illumination is white sunlight, and also at sunset, when the main illumination is red. This helps us identify objects
Color Constancy
Our learned experience of color influences the brains perception of light….tomatoes are red, grass is green, blood is teal etc.
Color Constancy
